CN1163217C - fragrance composition - Google Patents

Abstract

A perfume composition which gives good deposition and/or substantially improved deodorant effectiveness on textiles incorporating spandex(R) fibres. The perfume comprises a mixture of fragrance materials in which at least 60% by weight of the composition comprises fragrance materials drawn from categories I and II.

Description

fragrance composition

The present invention relates to fragrances, to detergent compositions containing such fragrances, and to the use of these compositions to leave a fragrance on fabrics.

Fragrances have been used in laundry products for many years. Fragrances are used to mask natural tastes and provide aromas to attract or please the user. In general, a fragrance must be able to smell good at multiple stages, for example, from the product "in the package", to the product in use, on wet clothes after washing, and on dry clothes (i.e. in the after drying wet clothes). Certain fragrances can combat body odor when applied directly to human skin or when added to washing products. Such fragrances can be found in EP-B-3172, US-A-4304679, US-A-4278658, US-A-4134838, US-A-4288341 and US-A-42289641, US-A-5482635 and US-A- A-5554588.

To achieve the deodorizing effect, a sufficient amount of fragrance must be transferred to the fabric after washing and can be smelled, or play a deodorizing effect (if the fragrance has deodorizing properties).

There are many techniques for improving the release and longevity of fragrances to substances such as skin, hair, fabrics and hard surfaces. This includes the use of fixatives in fragrances to reduce the partial pressure of fragrance components (such as GB1534231) to reduce volatile loss, and the use of carriers (such as EP332259) or microcapsules (such as EP376385) to deliver fragrances to fabrics. Although these technologies can increase the retention of fragrance on dry clothes, they increase the operation steps and/or material costs.

Currently, many garments are made from mixed fiber fabrics, some of which are elastane, allowing the fabric to be stretched and recovered. For this reason, Spandex fibers are commonly used. The United States Federal Trade Commission has adopted the term "spandex" as a general term to refer to those fibers made of long-chain synthetic polymer fiber-forming substances containing at least 85% segmented polyurethane. For a discussion of these fibers see "History of Spandex", A.J. Ultee, Manmade Fibers: Their Origin and Development, edited by R.V. Seymour and R.S. Porter, Elsevier 1993 p.278. Spandex fibers are also known as "elastic" fibers or "elasthane" fibers.

Another treatment of such fibers is "Segmented Polyurethanes", Handbook of Textile Fibers, J. Gordon Cook, 5th ed., p.613, Merrow Publishing Company 1984. Further descriptions of elastic fibers and their applications can be found in "synthesefasern: Grundlagen, Technologie, Verarbeitung und Anwendung", ed. B. von Falkei, Verlag Chemie (1981). Elastane products are well known, in particular LYCRA_, which is a registered trademark of DuPont de Nemours and Company. Patents relating to such fibers are US-A-5000899, US-A-5288779 and US-A-5362432.

Summary of the invention

We have now found that certain fragrances have good deposition and/or greatly improved deodorization on Spandex-incorporated fibers.

Broadly stated, the present invention provides a fragrance composition which is a mixture of fragrance materials characterized in that a total of at least 60% by weight of ingredients consists of the following Group I and II fragrance materials:

Class I, hydroxyl materials, are alcohols, phenols or salicylates, and the common logarithm of the octanol/water partition coefficient P, i.e. log ₁₀ P, is not less than 3.0, and polydimethylsiloxane is used as a non-polar poly having a gas chromatographic Kovats index of between 1100 and 1600 as measured on a silicone stationary phase, said class I material comprising at least 33% by weight of said fragrance composition,

Class II, esters, ethers, nitriles, ketones or aldehydes, the common logarithm of the octanol/water partition coefficient P, i.e. log ₁₀ P is not less than 2.5, with polydimethylsiloxane as the non-polar silicone stationary phase The gas chromatographic Kovats index was determined to be between 1300 and 1600. Preferably, the above fragrance composition comprises at least 20% by weight of said type II ingredients, more preferably at least 30% by weight of said type II ingredients.

In one embodiment, the fragrance composition of the present invention comprises at least 20% by weight of an ingredient of Group I selected from the following list: 1-(2'-tert-butylcyclohexyloxy)-butan-2-ol 3-Methyl-5-(2',2',3'-trimethylcyclopent-3-enyl)-pentan-2-ol 4-Methyl-3-decen-5-ol Amyl salicylate 2-Ethyl-4-(2',2',3'-trimethylcyclopent-3-enyl)-but-2-enol Bornyl alcohol Carvacrol Citronellol 9-decenol Dihydroeugenol Dihydrolinalool Dihydromyrcenol Dihydroterpineol Geraniol Hydroxycitronellal Isoamyl salicylate Isobutyl salicylate isoeugenol _alcohol Nerolidol Nerol p-tert-Butylcyclohexanol phenoxanol Terpineol Tetrahydrogeraniol Thymol (4-Isopropylcyclohexyl)methanol

In another embodiment, the fragrance composition of the present invention comprises at least 20% by weight of a class II ingredient selected from the following list: 1-methyl-4-(4-methyl-3-pentenyl)-3-cyclohexene-1-carbaldehyde 1-(5',5'-Dimethylcyclohexenyl)-penten-1-one 2-Heptylcyclopentanone 2-Methyl-3-(4'-tert-butylphenyl)propanal 2-Methylundecanal 2-undecenal 2,2-Dimethyl-3-(4'-ethylphenyl)-propanal 3-(4'-Isopropylphenyl)-2-methylpropanal 4-Methyl-4-phenylpentan-2-acetate Allyl cyclohexyl propionate Allyl cyclohexyloxyacetate amyl benzoate Methyl ethyl ketone trimer Benzophenone 3-(4'-tert-Butylphenyl)-propanal Caryophyllene cis-jasmone Citral diethyl acetal Citronellal diethyl acetal Citronellyl acetate Phenyl ethyl butyl ether Damascone, alpha- Damascone, β- Damascone, delta- Decalactone, γ- Dihydroisojasmonate Dihydroisojasmone Dihydroterpineyl acetate Dimethyl anthranilate diphenyl ether Lauric aldehyde- Myrcene-2-aldehyde dodecyl nitrile 1-ethoxy-1-phenoxyethane 3-(1'-Ethoxyethoxy)-3,7-dimethylocta-1,6-diene 4-(4'-Methylpent-3'-enyl)-cyclohex-3-enal Ethyl tricyclo[5.2.1.0-2,6-]decane-2-carboxylate 1-(7-isopropyl)-5-methylbicyclo[2.2.2]oct-5-en-2-yl)-1-ethanone Allyl tricyclodecenyl ether tricyclodecenyl propionate γ-Undecanolide Tricyclodecenyl Isobutyrate Geranyl acetate Hexyl Benzoate Ionone, alpha Ionone, beta Isobutyl cinnamate isoeugenyl acetate 2,2,7,7-Tetramethyltricycloundec-5-one tricycloundecenyl acetate 2-Hexylcyclopentanone 4-Acetoxy-3-pentyltetrahydropyran Ethyl 2-hexylacetoacetate 8-isopropyl-6-methylbicyclo[2,2,2]oct-5-ene-2-carbaldehyde Methyl 4-isopropyl-1-methylbicyclo[2.2.2]oct-5-ene-2-carboxylate Methyl cinnamate alpha isomethyl ionone methylnaphthyl ketone β-Naphthyl ethyl (methyl) ether γ-nonanolide Nobutyl Acetate p-tert-butylcyclohexyl acetate Phenoxyethyl Isobutyrate Phenyl ethyl isoamyl ether Phenylethyl Isobutyrate Tricyclodecenyl pivalate Phenylethyl pivalate Phenylacetaldehyde hexanediol 2,4-Dimethyl-4-phenyltetrahydrofuran rose acetone Terpine acetate β-naphthyl methyl ether (4-Isopropylcyclohexadienyl) ethyl formate

The fragrance compositions of the present invention may be incorporated into laundry or other compositions for treating fabrics. This could be a detergent or pre-soak used to wash fabrics, or a softening composition to soften washed fabrics during the rinse and dry process.

We have also found that the fragrance compositions can be added to compositions used to treat yarn or new fabrics to impart fragrance to new garments.

An advantage of the fragrance compositions of the present invention is the good deposition and retention of the fragrance on fabrics. We investigated the good deposition of a range of fragrances, especially those of medium volatility (i.e., between the volatile fragrances used as "top notes" in fragrances and the low volatility ones used as base notes in fragrances). ). These moderately volatile substances tend to disappear after washing and drying on other fabrics such as cotton, polyamide and polyester.

Preferably, the aromatic agent of the present invention is a deodorant aromatic agent, and in the deodorizing value test described in EP-A-147191 and corresponding US-A-4663068, the deodorizing value on cotton is at least is 0.25, more preferably at least 0.5.

We have found that when Spandex is included in fabrics, the deodorizing effect of these fragrances is enhanced compared to conventional fibers such as cotton, polyamide and polyester without Spandex. This can be determined using a deodorization value test in which the fabric under test is changed without changing the fragrance.

Deodorization value test

In this test, the deodorizing value of a deodorant fragrance is determined by applying it to fabrics, bringing the fabrics so treated into contact with the armpits of a group of people, keeping them there for a standard period of time, and then evaluating their effectiveness in eliminating body odor . Thereafter, according to the olfactory evaluation by a trained panelist, the deodorization value is calculated as a measure of the effect of the tested fragrance as a deodorant.

The first stage is to prepare the fabric for fragrance treatment.

Select the fabric for testing and cut it into a square of 20cm×20cm. Cut the control fabric into the same square. Then, wash both fabrics in a front load washing machine with a fragrance-free laundry detergent containing the following ingredients. Element parts by weight SDBS 9.0 C _13-15 Alcohol 7EO 4.0 sodium tripolyphosphate 33.0 Alkaline sodium silicate 6.0 Sodium carboxymethyl cellulose 1.0 Magnesium silicate 1.0 Ethylenediaminetetraacetic acid 0.2 sodium sulfate 15.0 water 10.8

The washed fabric is then rinsed in cold water and finally dried. The resulting square fabrics are "non-treated" fabrics, ie free from fragrances, other deodorizing substances, sizing and other water soluble substances that would adversely affect the deodorizing value.

The non-treated fabrics were divided into two lots, one lot, which was not washed, represented the control fabrics in the test. Another batch was washed again in the washing machine with a pre-washed standard fabric laundry detergent supplemented with 0.2% by weight of the fragrance tested. The fragrance-treated fabric is then rinsed again in cold water and dried. The squares of fabric thus obtained were the "test" fabrics, ie the fabrics had been loaded with the fragrance to be tested.

When the fragrance performance is to be tested, the control and test fabrics are the same, for example polyester or cotton fabrics, the "non-treated" fabrics are used as controls without being washed. To test deposition on different garments, the test fabric can be different from the control fabric, and both are washed with a fragranced laundry detergent.

The second phase is testing. A team of 3 Caucasian female evaluators aged 20 to 40 was selected for olfactory evaluation, provided that everyone could correctly distinguish the odor level levels of a series of standard isovaleric acid aqueous solutions described later, and be able to give the corresponding The odor intensity of a solution corresponding to the value of body odor on the underarm area of a shirt lined by a male after wearing it for a standard period of time.

A group of 40 Caucasian males aged 20 to 55 were selected as test subjects. When screening, select those subjects whose underarm body odor is usually not too strong and which produce body odor of equal intensity in both armpits. The test group did not select subjects who had particularly strong body odor, for example from eating curry or garlic.

During the two weeks prior to the test, the subject group was instructed to bathe thoroughly with a fragrance-free, non-deodorant soap and, furthermore, not to use other types of deodorants or antiperspirants. At the end of this period, 40 subjects were randomly divided into 2 groups of 20 persons each.

Then, the "test" and "control" fabric pieces were applied to the underarm area of 40 clean cotton or polyester-cotton shirts. Of the 20 shirts, the control fabric piece was applied to the left underarm area and the test fabric piece was applied to the Right armpit area. In the remaining 20 shirts, the placement of the control and test fabric pieces was reversed.

The fabric-lined shirts were then worn by 40 test team members for 5 hours, during which time each member was functioning normally and no additional activity was required.

After 5 hours, the shirts were removed, the liners removed, placed in polyethylene bags, and evaluated by a panel of trained evaluators.

The body odor intensity of each fabric liner was rated by 3 evaluators, who were unaware of which were the "test" liners and which were the "control" liners, and were not aware of the scores given by subsequent peer evaluators. Each piece of fabric was given a score from 0 to 5 corresponding to the intensity of the odor, with 0 being no odor and 5 being very strong.

Standard aqueous solutions of isovaleric acid with scores of 1, 2, 3, 4 and 5 were used as a reference to help the evaluators to evaluate the off-flavor. The reference looks like this: Score odor level Concentration of isovaleric acid aqueous solution (ml/l) 0 tasteless 0 1 very light smell 0.013 2 obvious smell 0.053 3 moderate odor 0.22 4 strong smell 0.87 5 very strong smell 3.57

Calculate the average of the scores given by each panelist for each fabric. The deodorization value is obtained by subtracting the mean score of the "test" fabric from the mean score of the "non-treated" control fabric.

As a check, if the subject group selection meets the requirements for testing, the average score for the non-treated fabric should be between 2.5 and 3.0.

Preferred deodorant fragrances have a deodorizing value of at least 0.50, or 0.70, or 1.00, preferably a deodorizing value of 3.0. The higher the minimum value, the better the deodorizing effect of the fragrance, as noted by the panelists in the deodorization test. We also noticed that if the deodorization value is at least 0.30, users who are not professional evaluators can also perceive a significant reduction in odor on fabrics such as shirts and underwear according to their own judgments. Therefore, the higher the deodorization value is than 0.30, The deodorizing effect is more obvious.

Aromatic material and selection

As previously stated, the fragrances of the present invention necessarily comprise a number of fragrance materials defined by the presence of certain chemical structural groups, octanol/water partition coefficient (P) and Kovats index.

The octanol-water partition coefficient (or its common logarithm, Log ₁₀ P ) is a well-known indicator of hydrophobicity and water solubility in the literature (see, Hansch and Leo, Chemical Reviews, 526-616, (1971), 71, Hansch, Quinlan and Lawrence, J. Organic Chemistry, 347-350, (1968), 33). If there are no values of these indicators in the literature, they can be directly measured, or roughly estimated through mathematical calculations. Commercially available software such as Advanced Chemistry Design Inc.'s "LogP" already exists for such estimation.

To have a Log ₁₀ P of not less than 2.5, the material must have some degree of hydrophobicity.

The Kovats index is calculated from the residence time in gas chromatography with reference to the residence time of alkanes (see Kovats, Helv. Chim. Acta 41, 1915 (1958)). For many years, the fragrance industry has used indices obtained with non-polar stationary phases as descriptive parameters related to the molecular size and boiling point of ingredients. Kovats indices in the fragrance industry are reviewed by T. Shibamoto in "Capillary Gas Chromatography in Fragrance Analysis", P. Sandra and C. Bicchi (eds.), Huethig (1987), pp. 259-274. One of the suitable common non-polar phases is 100% dimethylpolysiloxane, such as HP-1 (Hewlett-Packard), CP Sil 5 CB (Chrompack), OV-1 (Ohio Valley) and Rtx -1 (Restek), etc.

Class I and Class II aromatic materials have different minimum Kovats indices.

Class I includes alcohols of the general formula ROH, where the hydroxyl group can be primary, secondary or tertiary, and the R group is an alkyl or alkenyl group, which can be branched or substituted, cyclic or open-chain , so that the distribution coefficient and Kovats index of ROH are as mentioned above. Typically, this group of materials includes monofunctional alkyl alcohols or aryl alkyl alcohols, with molecular weights ranging from 150 to 230.

Class I also includes phenols with the general formula ArOH, where the Ar group represents a benzene ring, which may be substituted by one or more alkyl or alkenyl groups or -CO ₂ A ester groups, where A is a hydrocarbon group. If it is in the ortho position to the hydroxyl group, the compound is a salicylate. The distribution coefficient and Kovats index of ArOH are as mentioned above. Typically, this group of substances includes monohydric phenols with molecular weights between 150-210.

Particularly preferred compositions are those having a partition coefficient of not less than 1000, ie a log ₁₀ P of not less than 3, and a Kovats index of 1100 to 1600.

The following table exemplifies Class I hydroxyl-containing ingredients that meet the above criteria. Materials within preferred subgroups are marked with an asterisk. The aliases used are those used in standard trade textbooks for the fragrance industry, inter alia: Common Fragrance and Flavor Materials by Bauer, Garbs and Surburg, VCH Publ. 2nd Edition (1990), and Perfume and Flavor Materials, Steffen Arctander, by author published in two volumes in 1969). Examples of class I aromatic materials 1-(2'-tert-Butylcyclohexyloxy)-butan-2-ol ^* 3-Methyl-5-(2',2',3'-trimethylcyclopent-3-enyl)-pentan-2-ol ^* 4-Methyl-3-decen-5-ol ^* Amyl Salicylate ^* 2-Ethyl-4-(2',2',3'-trimethylcyclopent-3-enyl)-but-2-enol ^* (Bangalol, TM) Bornyl alcohol ^* Carvacrol ^* Citronellol ^* 9-Decenol ^* Dihydroeugenol Dihydrolinalool ^* Dihydromyrcenol Dihydroterpineol ^* Eugenol Geraniol ^* Hydroxycitronellal ^* Isoamyl Salicylate ^* Isobutyl Salicylate ^* Isoeugenol ^* Linalool _alcohol ^* Nerolidol ^* Nerol ^* 4-tert-Butylcyclohexanol ^* phenoxanol ^* Terpineol Tetrahydrogeraniol ^* tetrahydrolinalool Tetrahydromyrcenol Thymol ^* 2-methoxy-4-methylphenol (Ultravanil, TM) (4-Isopropylcyclohexyl)methanol ^*

Class II are esters, ketones, nitriles, aldehydes or ethers having a common logarithm of the octanol-water partition coefficient (log ₁₀ P) not less than 2.5 and a Kovats index of 1130-1600 (non-polar phase).

The general formula of class II components is RX, where X can be in the primary, secondary or tertiary position, selected from: -COA, -OA, -CO ₂ A, -CN or -CHO. R and A are hydrocarbyl groups, which may be cyclic or open-chain, and may be substituted. In some forms of the invention, Class II materials exclude any material having free hydroxyl groups, such that if a hydroxyl group is present, the material should be considered a member of Class I. Typically, Class II materials are monofunctional compounds with molecular weights ranging from 160 to 230.

Particularly preferred are those having a Kovats index between 1350-1600 and having rings such as phenyl or cycloalkyl in the molecular structure.

The table below provides examples of Class II materials that meet the above criteria. Materials in preferred subgroups are marked with an asterisk. Examples of class II aromatic materials 1-Methyl-4-(4-methyl-3-pentenyl)-3-cyclohexene-1-carbaldehyde ^* 1-(5',5'-Dimethylcyclohexenyl)-penten-1-one ^* 2-Heptylcyclopentanone ^* 2-Methyl-3-(4'-tert-butylphenyl)propanal 2-Methylundecanal 2-undecenal 2,2-Dimethyl-3-(4'-ethylphenyl)-propanal 3-(4'-Isopropylphenyl)-2-methylpropanal 4-Methyl-4-phenylpentan-2-yl acetate ^* Allyl cyclohexyl propionate ^* Allyl cyclohexyloxyacetate ^* Amyl benzoate ^* Methyl ethyl ketone trimer (Azarbre, TM) Benzophenone ^* 3-(4'-tert-butylphenyl)-propanal (Bourgeonal, TM) Caryophyllene ^* cis-jasmone ^* Citral diethyl acetal Citronellal diethyl acetal Citronellyl acetate Phenyl ethyl butyl ether (Cressanther, TM) Damascone, alpha- ^* Damascone, beta- ^* Damascone, delta- ^* Decalactone, gamma- ^* Dihydroisojasmonate ^* Dihydroisojasmone ^* Dihydroterpineyl acetate Dimethylanthranilate ^* Diphenyl ether ^* Diphenylmethane ^* Lauric aldehyde Myrcene-2-aldehyde dodecyl nitrile 1-ethoxy-1-phenoxyethane (Efetaal, TM) 3-(1'-ethoxyethoxy)-3,7-dimethylocta-1,6-diene (Elintaal Forte, TM) 4-(4'-Methylpent-3'-enyl)-cyclohex-3-enal (Empetaal, TM) Ethyl tricyclo[5.2.1.0-2,6-]decane-2-carboxylate ^* 1-(7-isopropyl)-5-methylbicyclo[2.2.2]oct-5-en-2-yl)-1-ethanone* (Felvinone, TM) Allyl Tricyclodecenyl Ether ^* (Fleuroxene, TM) Tricyclodecenyl Propionate ^* (Florocyclens, TM) Gamma-undecanolide ^* N-methyl-N-phenyl-2-methylbutanamide (Gardamide, TM) Tricyclodecenyl Isobutyrate ^* (Gardocyclene, TM) Geranyl acetate Hexyl Benzoate ^* Ionone, alpha ^* Ionone, beta ^* Isobutyl cinnamate ^* Isobutylquinoline ^* Isoeugenyl acetate ^* 2,2 7,7-Tetramethyltricycloundec-5-one ^* (Isolongifolanone, TM) Tricycloundecenyl Acetate ^* (Jasmacyclene, TM) 2-Hexylcyclopentanone (Jasmotone, TM) 4-Acetoxy-3-pentyltetrahydropyran (Jasmopyran, TM) Ethyl 2-hexylacetoacetate (Jessate, TM) 8-isopropyl-6-methylbicyclo[2,2,2]oct-5-ene-2-carbaldehyde (Maceal, TM) Methyl 4-isopropyl-1-methylbicyclo[2.2.2]oct-5-ene-2-carboxylate ^* Methyl cinnamate Alpha isomethyl ionone ^* Methylnaphthylketone ^* β-Naphthyl ethyl (methyl) ether γ-nonanolide Nopryl acetate ^* p-tert-butylcyclohexyl acetate 4-Isopropyl-1-methyl-2-(1'-propenyl)-benzene ^* (Pelargene, TM) Phenoxyethyl isobutyrate ^* Phenyl ethyl isoamyl ether ^* Phenylethyl isobutyrate ^* Tricyclodecenyl Neopentanoate ^* (Pivacyclene, TM) Phenylethyl pivalate ^* (Pivarose, TM) Phenylacetaldehyde hexanediol ^* 2,4-Dimethyl-4-phenyltetrahydrofuran (Rhubafuran, TM) rose acetone ^* Terpine acetate 4-Isopropyl-1-methyl-2-(1'-propenyl)-benzene (Verdoracine, TM) β-naphthyl methyl ether ^* (4-Isopropylcyclohexadienyl) ethyl formate

Patents such as US-A-43067 describe how to select a combination of fragrance materials to provide deodorization. Selected systems are further given in US-A-5482635 and US-A-5554588.

Said selection can be made by selecting those materials having the above-mentioned preferred partition coefficients and Kovats indices.

The fragrance composition of the present invention can deliver fragrance to various fabrics, and a suitable fragrance can also bring deodorizing effect, which is especially remarkable on the fabric containing Spandex fiber.

Spun into the Spandex fibers is a segmented polyurethane, a copolymer with polyurethane segments. Such polymers typically contain so-called soft (i.e. low melting point) segments and so-called hard (i.e. high melting point) segments, the soft segments may be polyalkylene ethers or polyesters and the hard segments are isocyanates and chain extenders (usually a diamine) reaction product.

The soft segment may be poly(tetramethylene) ether, possibly containing substituted tetramethylene glycol residues, see US-A-5000899. Useful organic diisocyanates include commonly used diisocyanates such as diphenylmethane-4,4'-diisocyanate, also known as methylene-bis(4-phenylisocyanate) or "MDI", 2,4-tolyl Diisocyanate, methylene-bis(4-cyclohexyl isocyanate), isophorone diisocyanate, tetramethylene p-dimethylphenyl diisocyanate, and the like. MDI is preferred.

Chain extenders used to form hard segments preferably include ethylenediamine (EDA), 1,3-propylenediamine, 1,4-cyclohexanediamine, hydrogenated m-phenylenediamine (HPMD), 2-methylpenta One or more of methylenediamine (MPMD) and 1,2-propylenediamine. Even better, the chain extender is one or more of ethylenediamine, 1,3-propylenediamine and 1,4-cyclohexanediamine, and can also be combined with HPMD, MPMD and/or 1,2- Mixtures of propylenediamine.

Spandex fibers containing poly(tetramethylene) ether as the soft segment are sold by Dupont de Nemours International S.A. as LYCRA®, registered as a trademark by Dupont de Nemours and Company.

Spandex fibers are often blended with other fibers such as cotton, polyamide, wool, polyester and acrylic into yarns that are then made into fabrics. The content of spandex fiber generally accounts for 0.5% to 50% by weight of yarn or fabric, and more is 1% to 30% by weight of yarn or fabric.

Spandex fibers may be present in the fabric of many garments, including sportswear, underwear, socks and many casual wears.

fabric finishing composition

The fragrance compositions of the present invention may be incorporated into fabric finishing products for washing, rinsing, drying or other treatment of fabrics. Such products can be:

Descaling agents for laundering fabrics;

pretreatment compositions applied to selected areas of clothing prior to laundering;

Pretreatment compositions for soaking entire garments prior to washing;

Rinse conditioning compositions for softening clothes during rinsing after washing;

Additional compositions for use in combination with any of the above;

Fabric conditioning articles placed with garments during the drying process;

A spray that is sprayed directly on dry laundry.

These products come in a variety of forms including powders, bars, sticks, sheets, foams, gels, liquids, sprays, and fabric finishing films that are placed in the tumble dryer with the fabric. The content of fragrance in such products is between 0.1 and 10% by weight. It is known how to incorporate fragrances into such products and the present invention can incorporate fragrances using existing techniques. This can be by adding the fragrance directly to the product, or by adsorbing the fragrance on a carrier material and then mixing this fragrance-carrier mixture with the fabric finishing product. This method necessitates the use of solid fabric finishing products and an inert particulate carrier.

According to the present invention, the descaling surfactant to be added to the descaling agent composition of fragrance generally accounts for 2-50% of the total weight of the composition, 5-40% is better, and the builder accounts for 20% of the total weight of the composition. 5-80%. The remainder, if any, may contain the various ingredients of known fabric detergents, including bleaching agents. The surfactant may be one or more soapy or non-soapy, anionic, nonionic, cationic, amphoteric or zwitterionic surfactants, or combinations thereof. The preferred surfactants which can be used are soaps and synthetic non-soap anionic and nonionic compounds. Mixed surfactants, such as mixed anionic compounds, or mixtures of anionic and nonionic compounds, are often used in detergent compositions.

Builders are substances that soften hard water by solubilizing or otherwise reducing calcium and magnesium salts. The most common water-soluble inorganic builder is sodium tripolyphosphate. Another water-soluble inorganic builder is sodium carbonate, which is often used in conjunction with seed crystals to accelerate calcium carbonate precipitation. Commonly used insoluble inorganic builders are zeolites and layered silicates. Organic builders such as sodium citrate and sodium polyacrylate can also be used.

Some descaling compositions, typically descaling fluids, contain 5-50% surfactant and little or no builder.

Other ingredients often included in descaling compositions include alkaline silicates, peroxygen or chlorine bleaches, degreasers, heavy metal chelating agents, anti-redeposition agents such as sodium carboxymethylcellulose, enzymes, enzymatic Stabilizers, including fabric softeners to soften clay, optical brighteners, defoamers or blowing agents, and fillers such as sodium sulfate.

Pretreatment compositions for soaking soiled fabrics prior to the main wash step contain 5-80 wt% builder and little or no surfactant. Such compositions often contain enzymes.

The content of fragrance in the descaling composition or soaking composition is about 0.1-5% of the total weight of the composition, mostly 0.1-2%.

The fabric conditioning composition may contain from 1 to 40% by weight of a fabric conditioner, although higher levels may be present in high concentration products, the fabric conditioner may be a fabric softener. Fabric softeners are generally nonionic or cationic compounds containing at least one alkyl, alkenyl or acyl group having at least 8 carbon atoms. This includes but is not limited to:

(i) Quaternary ammonium and imidazolinium compounds and corresponding tertiary amines and imidazolines, containing at least 1, preferably 2, C8-C30 alkyl or alkenyl groups; also include alkyl-containing ethers, esters, carbonates or amide moieties, ethoxylated derivatives and analogs of the above compounds; also compounds having more than one tertiary or quaternary nitrogen atom;

(ii) Aliphatic alcohols, esters, amines or carboxylic acids containing C8-C30 alkyl, alkenyl or acyl groups, including sorbitan and esters of polyols;

(iii) polyols such as silicones, mineral oils and polyethylene glycols.

US-A-4137180 and EP-A-239910 describe a number of fabric conditioning compounds.

The form of the fabric conditioning composition for addition to the rinse liquor is usually an aqueous dispersion of the conditioning agent. They can also be in powder form.

Fragrances are typically present in such conditioning liquids or powders at a level of 0.1% to 2% by weight. The preferred content depends on the concentration of the softener and the requirements of the market.

The content of the fragrance in the high-concentration fabric conditioner is 0.1-10wt%, preferably 2-8wt%.

Fabric conditioning wraps are intended to be placed in the tumble dryer with wet rinsed laundry. The fabric conditioners that these products contain are the aforementioned non-ionic compounds, soaps and/or fatty acids that melt at the temperature of the dryer. These conditioning agents are contained on the porous membrane. Silicone oil may be included. The content of fragrance in such products is generally 2-10 wt% of the product, often 2 wt% or 4 wt% to 7 wt% or 8 wt% of the product.

Another form of fabric finishing product is a fragrance-containing carrier liquid packaged in a use container to deliver the composition as a spray. Such sprays are sold as laundry "fresh sprays". In such products, the level of fragrance is generally 0.1-10% by weight of the liquid composition.

Another possibility is to treat the yarn with fragrance, or to use it in the "finishing" of new fabrics. This step is used in fabric wet treatment to improve the handle or appearance of the fabric. The fabric is generally treated in a water bath containing a fabric softener with a total content of 3% by weight of the fabric. The water bath may contain the aromatic agent of the present invention, and the total content is 0.001-1% of the weight of the fabric.

Example 1

A fragrance ingredient mixture was prepared and added to a conventional laundry detergent powder without fragrance such that the concentration of fragrance was 0.5% by weight.

The test fabrics which have not been treated with any fragrance are washed with a fragrance-containing washing powder. These fabrics can be all cotton, or contain 95% cotton and 5% spandex. After washing, rinse fabric and allow to dry overnight.

Fragrance was extracted from dry fabric with organic solvent, and the concentration of fragrance in the organic solvent extract was determined by gas chromatography. If the concentration of fragrance components extracted from Spandex-containing fabrics is 5 to 20 times higher than that extracted from cotton fabrics, the result is recorded as moderately enhanced (M). High enhancement (H) was recorded if the concentration was more than 20-fold higher, and low enhancement (L) if less than 5-fold or no difference in assay results.

The result is as follows: Element K ^* logP ^** Enhancement category Boisambrene Forte 1714 5.5 m - benzyl acetone 1206 2.0 m - Citronellol 1209 3.6 h I 2,6-Dimethyl-heptan-2-ol 975 2.9 L - Jasmacyclene 1394 2.9 h II Methyl salicylate 1167 2.3 L - 2-phenylethanol 1087 1.4 L - Terpine acetate 1331 4.0 h II Tetrahydrogeraniol 1180 3.6 h I THC 1083 3.5 h I Tonalid 1840 6.4 m - β-naphthyl methyl ether 1416 3.2 h II

^* Determined on OV1 phase with capillary gc

^** Measured or estimated using ACD Inc.'s "logP" software

Example 2

Two fragrance compositions according to the invention and one comparative composition contained the following ingredients:

Fragrance Class I Class II Others

A 35.1 46.6 18.3

B 41.8 43.8 14.4

C 27.6 29.0 43.4

These compositions were used in the deodorization value test, the test fabric was 95% cotton 5% Spandex. As a control, an all-cotton test fabric was washed with a fragrance-free detergent powder. and get the following result:

Fragrance A Fragrance B Fragrance C

Average component value 1.04 1.29 1.57

Control group score 2.46 2.46 2.46

Deodorization value 1.42 1.17 0.89

% of Deodorization Value vs Control Score 57.7 47.4 36.1

Claims (9)

1. perfume composition, it is the mixture of aromatic material, is characterised in that altogether the composition of 60wt% is made of following I class and II class aromatic material at least:

The I class, the hydroxyl material is alcohol, phenol or salicylic acid esters, the common logarithm of its octanol/water partition coefficient P is log ₁₀P is not less than 3.0, with polydimethylsiloxane be the gas chromatogram Kovats index measured of nonpolar silicone static phase between 1100 to 1600, described I class material accounts for described fragrant composition 33wt% at least,

The II class, ester, ether, nitrile, ketone or aldehyde, the common logarithm of its octanol/water partition coefficient P is log ₁₀P is not less than 2.5, is that the gas chromatogram Kovats index measured of nonpolar silicone static phase is between 1300 to 1600 with polydimethylsiloxane.

2. perfume composition according to claim 1 comprises the described II constituents of 20wt% at least.

3. perfume composition according to claim 1 comprises the described II constituents of 30wt% at least.

4. perfume composition according to claim 1 comprises the I constituents that 20wt% at least is selected from following tabulation: 1-(2 '-tert-butylcyclohexyl oxygen base)-Ding-2-alcohol 3-methyl-5-(2 ', 2 ', 3 '-front three basic ring, penta-3-thiazolinyl)-penta-2-alcohol 4-methyl-3-decene-5-alcohol Amyl salicylate 2-ethyl-4-(2 ', 2 ', 3 '-front three basic ring, penta-3-thiazolinyl)-but-2-ene alcohol Borneolum Syntheticum alcohol Carvacrol Citronellol The 9-decenol Dihydroeugenol The dihydro linalool Dihydromyrcenol Dihydro-terpineol Geraniol Hydroxycitronellal Isoamyl salicylate Isonefolia Isoeugenol _ alcohol Nerolidol Nerol Patchone phenoxanol Terpinol Tetrahydrogeraniol Thymol (4-isopropylcyclohexyl-) methanol

5. perfume composition according to claim 1 comprises the II constituents that 20wt% at least is selected from following tabulation: 1-methyl-4-(4-methyl-3-pentenyl)-3-cyclohexene-1-formaldehyde 1-(5 ', 5 '-dimethyl cyclohexenyl group)-amylene-1-ketone Alismone 2-methyl-3-(4 '-tert-butyl-phenyl) propionic aldehyde The 2-methyl hendecanal The 2-undecylene aldehyde 2,2-dimethyl-3-(4 '-ethylphenyl)-propionic aldehyde 3-(4 '-isopropyl phenyl)-2 methyl propanal Acetic acid 4-methyl-4-phenyl penta-2-ester Propanoic acid pi-allyl cyclohexyl Cyclohexyl ethoxyacetic acid allyl ester Amyl benzoate The methyl ethyl ketone trimer Benzophenone 3-(4 '-tert-butyl-phenyl)-propionic aldehyde Caryophyllene Cis-jasmone The citral diethyl acetal The citronellal diethyl acetal Citronellyl acetate The phenylethyl butyl ether Damascone, α- Damascone, β- Damascone, δ- Decalactone, γ- The different jasmine acid esters of dihydro 2-n-hexyl- Acetic acid dihydro terpinyl acetate The dimethyl o-aminobenzoa Diphenyl ether Lauryl aldehyde Myrcene-2-aldehyde Lauronitrile 1-ethyoxyl-1-phenoxy group ethane 3-(1 '-ethoxy ethoxy)-3,7-dimethyl-octa-1,6-diene 4-(4 '-methylpent-3 '-thiazolinyl)-hexamethylene-3-olefine aldehydr Three the ring [5.2.1.0-2,6-] last of the ten Heavenly stems-the 2-carboxylic acid, ethyl ester 1-(7-isopropyl)-5-methyl bicyclic [2.2.2] suffering-5-alkene-2-yl)-the 1-ethyl ketone Pi-allyl tricyclic decenyl ether Cyclaprop Peach aldehyde The isopropylformic acid. tricyclodecenyl esters Geranyl acetate Hexyl-benzoate Ionoionone, α Ionoionone, β Isobutyl cinnamate The different clove tree ester of acetic acid 2,2,7,7-tetramethyl three rings 11-5-ketone Acetic acid three ring hendecene esters 2-hexyl Ketocyclopentane 4-acetoxy-3-amyl group Pentamethylene oxide. 2-hexyl ethyl acetoacetate 8-isopropyl-6-methyl bicyclic [2,2,2] suffering-5-alkene-2-formaldehyde 4-isopropyl-1-methyl bicyclic [2.2.2] suffering-5-alkene-2-carboxylate methyl ester Methyl cinnamate The α isomethyl ionone 1-Naphthylethanone β-naphthalene second (first) ether Nonyl lactone Nopyl acetate Vertenex Phenoxyethyl isobutanoate The phenylethyl isoamyl oxide The isopropylformic acid. phenyl chlorocarbonate The neopentanoic acid tricyclodecenyl esters The neopentanoic acid phenyl chlorocarbonate The phenyl acetaldehyde hexanediol that contracts 2,4-dimethyl-4-phenyl oxolane Flos Rosae Rugosae acetone Tirpinyl acetate Jara jara Formic acid (4-isopropyl cyclohexadienyl) ethyl ester

6. perfume composition according to claim 1, it is a kind of deodorization aromatic, is in the deodorization value test of 100% cotton in test fabric and control fabric, the deodorization value that records is 0.5-3.0.

7. the fabric finishing composition that contains each described perfume composition among the claim 1-6.

8. compositions according to claim 7, it is a kind of descaling composition that is used for laundering of textile fabrics, contains the described perfume composition of 2wt% to 50wt% surfactant and 0.1wt% to 5wt%.

9. compositions according to claim 7, it is a kind of rinsing care composition, comprises the aqueous dispersion that contains 1wt% to 40wt% fabric softener and the described perfume composition of 0.1wt% to 10wt%.